<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Feed_Reader
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Entry.php 23775 2011-03-01 17:25:24Z ralph $
 */

/**
 * @see Zend_Feed_Reader
 */
require_once 'Zend/Feed/Reader.php';

/**
 * @see Zend_Feed_Reader_Extension_EntryAbstract
 */
require_once 'Zend/Feed/Reader/Extension/EntryAbstract.php';

/**
 * @category   Zend
 * @package    Zend_Feed_Reader
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Feed_Reader_Extension_Podcast_Entry extends Zend_Feed_Reader_Extension_EntryAbstract {
	/**
	 * Get the entry author
	 *
	 * @return string
	 */
	public function getCastAuthor() {
		if (isset ( $this->_data ['author'] )) {
			return $this->_data ['author'];
		}
		
		$author = $this->_xpath->evaluate ( 'string(' . $this->getXpathPrefix () . '/itunes:author)' );
		
		if (! $author) {
			$author = null;
		}
		
		$this->_data ['author'] = $author;
		
		return $this->_data ['author'];
	}
	
	/**
	 * Get the entry block
	 *
	 * @return string
	 */
	public function getBlock() {
		if (isset ( $this->_data ['block'] )) {
			return $this->_data ['block'];
		}
		
		$block = $this->_xpath->evaluate ( 'string(' . $this->getXpathPrefix () . '/itunes:block)' );
		
		if (! $block) {
			$block = null;
		}
		
		$this->_data ['block'] = $block;
		
		return $this->_data ['block'];
	}
	
	/**
	 * Get the entry duration
	 *
	 * @return string
	 */
	public function getDuration() {
		if (isset ( $this->_data ['duration'] )) {
			return $this->_data ['duration'];
		}
		
		$duration = $this->_xpath->evaluate ( 'string(' . $this->getXpathPrefix () . '/itunes:duration)' );
		
		if (! $duration) {
			$duration = null;
		}
		
		$this->_data ['duration'] = $duration;
		
		return $this->_data ['duration'];
	}
	
	/**
	 * Get the entry explicit
	 *
	 * @return string
	 */
	public function getExplicit() {
		if (isset ( $this->_data ['explicit'] )) {
			return $this->_data ['explicit'];
		}
		
		$explicit = $this->_xpath->evaluate ( 'string(' . $this->getXpathPrefix () . '/itunes:explicit)' );
		
		if (! $explicit) {
			$explicit = null;
		}
		
		$this->_data ['explicit'] = $explicit;
		
		return $this->_data ['explicit'];
	}
	
	/**
	 * Get the entry keywords
	 *
	 * @return string
	 */
	public function getKeywords() {
		if (isset ( $this->_data ['keywords'] )) {
			return $this->_data ['keywords'];
		}
		
		$keywords = $this->_xpath->evaluate ( 'string(' . $this->getXpathPrefix () . '/itunes:keywords)' );
		
		if (! $keywords) {
			$keywords = null;
		}
		
		$this->_data ['keywords'] = $keywords;
		
		return $this->_data ['keywords'];
	}
	
	/**
	 * Get the entry subtitle
	 *
	 * @return string
	 */
	public function getSubtitle() {
		if (isset ( $this->_data ['subtitle'] )) {
			return $this->_data ['subtitle'];
		}
		
		$subtitle = $this->_xpath->evaluate ( 'string(' . $this->getXpathPrefix () . '/itunes:subtitle)' );
		
		if (! $subtitle) {
			$subtitle = null;
		}
		
		$this->_data ['subtitle'] = $subtitle;
		
		return $this->_data ['subtitle'];
	}
	
	/**
	 * Get the entry summary
	 *
	 * @return string
	 */
	public function getSummary() {
		if (isset ( $this->_data ['summary'] )) {
			return $this->_data ['summary'];
		}
		
		$summary = $this->_xpath->evaluate ( 'string(' . $this->getXpathPrefix () . '/itunes:summary)' );
		
		if (! $summary) {
			$summary = null;
		}
		
		$this->_data ['summary'] = $summary;
		
		return $this->_data ['summary'];
	}
	
	/**
	 * Register iTunes namespace
	 *
	 */
	protected function _registerNamespaces() {
		$this->_xpath->registerNamespace ( 'itunes', 'http://www.itunes.com/dtds/podcast-1.0.dtd' );
	}
}